The breakpoint is not hit while debug of a windows javascript metro app referencing windows runtime component in C#

Question

I've changed the debug type from "script only" to "managed only" in the startup project. But I attached the debug to the javascript app, the breakpoint in the referenced WinRT component was not hit anyway.

Can anyone help me on that? Thank you in advance.

Answer 1

ha, acturally I found out the solution that the project needs to be added into the solution along with the javascript metro app project.

Answer 2

Hi Chong.Feng,

As described in Chapter 16 of Programming Windows 8 Apps in HTML, CSS, and JavaScript, Visual Studio can only debug one type of code at a time. Here’s the relevant excerpt:

When you hit that [JavaScript] breakpoint, step through the code using Visual Studio’s Step Into feature (F11 or Debug > Step Into). Notice that you do not step into the C# code, an effect of the fact that Visual Studio can debug either script or managed (C#)/native (C++) code in one debugging session but unfortunately not both. Clearly, using some console output will be your friend with such a limitation.

so the breakpoint on javascript code can only work when you choose 'script only'.

Hope this helps, thanks.

---

Yanping Wang
MSDN Community Support | Feedback to us
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Answer 3

Hi Yanping,

The breakpoint was set in the component project in C#, so the debug type is well configured as 'managed only'.

Anyway, the problem is solved. Thank you for your reply.

Chong